Rechargeable battery pack



FIG. 1 is a top plan view of a rechargeable battery pack embodying our new design;

FIG. 2 is a side elevation view thereof which is a mirror image of its laterally opposite side;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left end elevation view thereof;

FIG. 5 is a right end elevation view thereof;

FIG. 6 is a top plan view of a modified embodiment of the rechargeable battery pack illustrated in FIG. 1;

FIG. 7 is a side elevation view of the rechargeable battery pack shown in FIG. 6 and which is a mirror image of its laterally opposite side;

FIG. 8 is a bottom plan view of the rechargeable battery pack illustrated in FIGS. 6 and 7;

FIG. 9 is a left end elevation view of the rechargeable battery pack illustrated in FIGS. 6, 7 and 8; and

FIG. 10 is a right end elevation view of the rechargeable battery pack illustrated in FIGS. 6, 7, 8 and 9. 

The ornamental design for a rechargeable battery pack, substantially as shown and described. 